[1] [1] Zhang Xiaolong, Liu Yin, Sun Qiang, et al. Design of hybrid refractive and reflective optical system of long-wave infrared region imaging spectrometer[J]. Acta Optica Sinica, 2012, 32(11): 1122005. (in Chinese)

[2] [2] Liu Xiaomei, Xiang Yang. Research and design of telecentric off-axis three-mirror system with real entrance pupil[J]. Acta Optica Sinica, 2011, 31(11): 1122002. (in Chinese)

[3] [3] Zhu Jun, Hou Wei, Zhang Xiaodong. Design of a low F-number freeform off-axis three-mirror system with rectangular fieldof-view [J]. Journal of Optics, 2014, 17:015605-015609.

[4] [4] Matthias Beier, Johannes Hartung, Thomas Peschel, et al. Development, fabrication, and testing of an anamorphic imaging snap-together freeform telescope [J]. Applied Optics, 2015, 54(12): 3530-3542.

[5] [5] Meng Qingyu, Wang Wei, Ji Zhenhua, et al. Design of off-axis three-mirror system based on integration of primary and tertiary mirrors [J]. Infrared and Laser Engineering, 2015, 44(2): 578-582. (in Chinese)

[6] [6] Juranek H J, Sand R, Schweizer J, et al. Off axis telescopes-the future generation of earth observation telescopes [C]//SPIE, 1998, 3439: 104-115.

[7] [7] Lin Jing, Cui Qingfeng, Zhu Hao, et al. Research of broad width off-axis three mirror optical system[J]. Acta Optica Sinica, 2013, 33(7): 0722002. (in Chinese)

[8] [8] Yang Xiaofei, Zhang Xiaohui, Han Changyuan. Application of ZEMAX foftware in alignment of three-mirror off-axis aspherical optical system[J]. Optics and Precision Engineering, 2004, 12(3): 270-274． (in Chinese)

[9] [9] Ding Xuezhuan, Wang Xin, Lan Weihua, et al. Design of four mirror reflective anastigmt optic system[J]. Infrared of Laser Engineering, 2008, 37(2): 319-321. (in Chinese)

[10] [10] Cook L G. Three mirror anastigmatic telescope: US, 4265510[P]. 1981.

[11] [11] Cook L G. Compact four-mirror anastimat telescope: US, 6767103[P]. 2004-06-27.

[12] [12] Zhao Wencai. Design of improved off -axial TMA optical systems[J]. Optics and Precision Engineering, 2011, 19(12): 2837-2843. (in Chinese)

[13] [13] Fan Xuewu, Ma Weihong, Chen Rongli, et al. Research of three-mirror system with double imaging[J]. Acta Photonica Sinica, 2003, 32(8): 1001-1003. (in Chinese)

[14] [14] Guo Yongxiang, Li Yingcai, Lv Baobin, et al. Design of new style unobscured three-mirror optical system[J]. Acta Optica Sinica, 2010, 30(4): 1144-1147. (in Chinese)

[15] [15] Yoder P R. Opto-Mechanical System Design[M]. 3rd ed, UK: Taylor & Francis Groups, 2006.

[16] [16] Pan Junhua. Fabrication and Testing of Optical Asphere[M].Beijing: Science Press, 1994: 19-37. (in Chinese)